Vapor-burning apparatus



(No Model.)

A. J. LINDEMANN. VAPOR BURNING APPARATUS.

Patented Sept. 4, 1894.

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UNITED YSTATES- PATENT OFFICE.

ALBERT J. LINDEMANN, OF MILWAUKEE, WISCONSIN.

VAPOR-Bu RNING APPARATUS.

SPIEGIFILGACIJIONk forming part of Letters Patent N o. 525,350, dated September 4, 1894.

Application led May 3, 1894. Serial No. 509,925. (No model.) l

To all whom it may concern.-

Be it known that I, ALBERT J. LINDEMANN, of- Milwaukee, in the countyof Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Vapor- Burning Apparatus; and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enable others skilled in the art to which it pertains to make' and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of thisfspeciiication.

The main objects-of my inventionl are to completely vaporize the oil before itreaches the burner, to dispense with absorbente, to avoidoffensive odor, to provide the required current or pressure for maintaining a strong, constant flame, and generally to improve the construction andoperation of apparatus of this class. v v A It consists of certain peculiarities in the constructionand arrangement of the component parts of the vaporizer and burner and their connections, hereinafter particularly described and v'pointed out in the claims.

In the accompanying `drawings like letters designate the same partys in the several figures, such parts only of apparatus being shown as are necessary to a full and clear understanding of my improvements. j

Figure lis a medial verticaltsection of a burner and vaporizer casing with their coni v tical cylindrical casing cl madeof 'sheetmetal'l 'or other suitable material, inclosing a numnections embodying my improvements, the evaporating plates audspreader of the vaporizer being shown in elevation. Fig.\2 is a plan view of the base of the burner, and Fig,

3 a plan view of the spreader and evaporat-v` ing plates or wings-forming a part of the v aporizer.

A designates vthe burner, comprising a per-v forated cap a which may be of any suitable form ordinarily employed -in this class of burners, a base a', preferably madeof castiron, and a cylindrical casing a2, preferably i of sheet metal, connecting the cap and base. The base a is of annular shape and formed with a cross-passage-a, having an upwardly extending branch ai* at .the center, and opening at the ends between upturned concentric t B is a bell or dome-shapedcastingfitted at and with vapor through the passage a3.

izer above the plates d.

line with the branch a4, which is open at its upper end.

C is a tube, preferably made of brass or some other good conductor of heat, 'fitted at its upper end into the central opening in the burner cap and top of casting B, and extendi ing at its lower end over the branch a4, so as to`leave an annular space or opening between the outer face of said branch and the inner face of the tube, vas shown in Fig.,2, said branch being formed on the outside with lugs by which` said tube-is held at a uniform. distance therefrom on all sides. The casting B is formed at or near the top witha neck b projecting laterally therefrom through the casing a, and provided with an external flange b to close the joint between it and the casing.

`athis a perforated cap or disk placed in the upper open'end -of the branch c4, and 0,6 is a screen of wire gauze inserted below said cap The branch c4 with its cap a5, and the tube C, constitute a supplementary burner of the Bunsen type, being supplied with air through the annularopening around the base of saidtube,

lto prevent the flame from burning below it.

The

casting B is lopen at the base land serves as an air intake and heating chamber.

D designatesa vaporizer comprising a verber of vertically disposed plates d d', whichv `lower end with a contracted neck d2 which isconnected by a pipe E with the annular space of burner A between its casing a2 and the casting B. lThe neck b of casting B is connectedl by a pipe F with the upper part'of .the vaporl designates the lower portion of the tank or reservoir from which oil is supplied' to theL vaporizer. It is'connected at the bottom with= the top of the vaporizer by a pipe' g which is' provided with a needle valve g.y rIhe pipe gr ,or a branch thereof, controlled by said valve," l v terminates a short distance above the vapor` izer in a lantern H through which the flow of Ico the under side with outwardly projecting strips jj to prevent the accumulation of oil at the center of said perforated plate and its dropping therefrom into pipe E before it is vaporized.

d3 is a perforated cylinder open at the ends, placed concentrically in the neck d2 at the lowerend of the vaporizer, and projecting a short distance above said neck so as to intercept any oil which may flow down the in-` clined sides of the bottom of the casin g d, and to prevent its passing to the burner in a liquid state. The needle valve g is formed with a threaded stem, to the upper end of which is adjnstably attached a crank handle g2 marked open on one side, and closed on the other, to plainly designate the position of the valve and to avoid uncertainty in its operation, and liability to accident arising from such uncertainty. y

While I have for the purpose of illustration,.shown but one burner and vaporizer, I

have shown in connection therewith two oil feed connections and controlling valves, one valve being open andthe other closed.

The projection g3 formed or provided on the valve case, serves byengagement with the crank handle or a projection therefrom, to limit the opening of the valve at the proper point. The requisite amount of opening is obtained by the permanent adjustment of the handle g2 on the valve stem, which is efectedby means of a set screw g4.

My improved apparatus operates as follows: To start the burner the valve g is opened and oil from the reservoir thus allowed to flow to the vaporizer, falling drop by drop upon the spreader I, by which it is conducted to the upper edges of the evaporating plates d'4 As it spreads over the surfaces of these plates in contact with the air, it rapidly evaporates and forms an inflammable vapor, which, being of somewhat greater specific gravity than the air, `flows downwardly through pipe E into the outer annular chamber of the burner, from which itis supplied to 4the main burner cap a, and through the passage a3 to the auxiliary burner. As soon as vapor sufficient for lighting is formed, the main burner is lighted by passing a match or flame over the perforated cap a,` the flame of which passes down the tube C and lights the auxiliary burner next to the perforated disk 0,5. The tube C soon becomes highly heated by the flame of the auxiliary burner, and the base` a and connecting passage ai are also burner.

heated by conduction. The air surrounding the tube C is thus heated, and being expanded, tends to rise through pipe F into the upper part of the vaporizer. A strong cur rent of heated air is thus produced downwardly through the vaporizer over the evaporating plates d', thence through pipe E into the outer portion of the burner, where it affords the requisite pressure to force the vapor through the openings in the burner cap and through the passage 0,3 to the perforated disk a, and thereby maintain astrong hot dame. The current of. hot air thus produced through the vaporizer greatly accelerates the evaporation of the oil which is exposed theretoover the expanded surfaces of i the plates d d. The corrugation of these plates not only aords more surface, but tends to retard the flow of oil over the same, thus promoting evaporation and preventing the oil from passing in a liquid state to the Any oil which finds its way to the lower edge of the plates d', is spread over the perforated plate or screen J and the deflecting strips j attached to the under side thereof, and any oil which passes by said perforated plate and flows down the inclined bottom of casing d, is caught by and spread over the surface of the perforated cylinder d3 lining the neck d2 at the lower end of the vaporizer.

By means of the various evaporating devices above mentioned, all the oil fed to the vaporizer will be converted into a vapor be fore it passes from its lower end into pipe E. I thus avoid the use of absorbente, which are frequently employed in apparatus of this class to take4 up such portions of the oil as the vaporizer fails to convert into vapor, and which when the apparatus is not in operation, give 0E an unpleasant odor.

It has been proposed in apparatus of this kind to vaporize the oil by free access of atmospheric air thereto, and to depend for the requisite pressure of vapor to operate the the dierence in the specific gravityof air at ordinary temperatures, and the vapor of the oil is insufficient to alord the necessary pressure. By my improved construction and arrangement of the burner and its connec. tions with the vaporizer, I am enabled not only IOO IIO

to produce the requisite pressure of vapor to A l maintain astrong steady'flame, but I secure" more rapid and complete evaporation of the oil. My construction also possesses the additional advantages of neatness, compactness and simplicity.

It is obvious that various changesin minor details of construction may be made without departure from the spirit of my invention; as l for instance, the auxiliary burner may be dispensed with andthe air suiciently warmed by the main burner flame,but'in that case it is necessary or advisable to increase the evapoing from the upper part thereof into the upperpart of said vaporizer, the upper part of said air chamber being otherwise closed, substantially as and for the purposes set forth.

2. In vapor burning apparatus the combination with a vaporizer of a burner comprising an exterior Vapor chamber, a perforated cap, a tube opening at the upper end through said cap and having an air intake opening at or near its lower end, and an air heating chamber surrounding said tube within the exterior vapor chamber, having an air intake opening and connected at or near the top with thev upper part of the vaporizer, and a pipe or passage connecting the lower part of the vaporizer with thesaid vapor chamber, substantially as and for the purposes set forth.

3. In vapor burning apparatus the combinationof a main burner chamber provided with a perforated cap and'having a vapor connection, a central auxiliary burner tube opening at its upper end through said cap and having a vapor connection and air intake at or near its lower end, and an air chamber surroundingsaid tube inside of the main burner chamber, and having an intake at or near the bottom, and an outlet at or near the top, substan-v tially as and for the purposes set forth.

4:. In vapor burning apparatus, a burner comprising an exterior casing, a perforated cap and a base forming an exterior chamber into which vapor is introducedan interior chamber inclosed therein and having an air intake opening at the bottom through the base, and a lateral outlet connection at or near the top, and an auxiliary burner tube surrounded by said interior chamber, opening at its upper end through said cap and connected at its lower end with said exterior chamber, substantially as and for the purposes set forth.

5. In vapor burning apparatus, a vaporizcr comprising a casing having an oilv feed con'- nection at the upper end, and a vapor delivery connection at the lower end, a number of vertically disposed radiating evaporating plates, a spreader arranged to distribute the oil to the upper parts of the several plates, and a transverse perforated plate or screen below said plates, substantially as and for the purposes set forth.`

6. In vapor burning apparatus, a vaporizer comprising evaporating plates, an inclosing casing having a contracted neck at the lower end, and a perforated cylinder placed a short distance within the walls of said neck in contact with the contracted wall of the casing, substantially as and for the purposes set forth.

7. In vapor burning apparatus, a vaporizer comprising a casing having an oil feed connection at or near the top, anda vapor delivery connection at or.near, the bottom, a number of vertically arranged evaporating plates, a spreader in contact with the upper parts of said plates, and a transverse screen in lcontact with the lower parts of said plates, provided on the under side with a number of depending radiating distributing strips, substantially as and for the purposes set forth.

8. In vapor burning apparatus, a vaporizer comprising a casing, vertically disposed ra diating evaporating plates inclosed therein and a spreader arranged Ato distribute oil `to said plates, substantially as and for the purposes set forth. Y

9. In vapor burning apparatus, a vaporizer comprising a casing, and vertically disposed horizontally corrugated evaporating plates upon which oil is fed, and a spreader arranged to distribute oil to the upper portion of said plates substantially as and for the purposes set forth. I y

10. In vapor burning apparatus, a'vaporizer comprising a casing anda number of horizontally corrugated or uted evaporatspreader arranged to distribute oil to the upper portion of said plates substantially as and for thev purposes set forth.

In testimony that I claim the foregoingas my own I affix my signature in presence of two witnesses. Y

i ALBERT .LLINDEMANN l Witnesses: v

OHAs. L. Goss, E. P. WQRDELL.

ing plates arranged radially therein, and a l IOO 

